Though initially trained as a Jedi Padawan, Asajj Ventress switched her green-bladed lightsaber for a pair of red-bladed curved-hilt lightsabers during her years as Darth Tyranus's apprentice.[4] Throughout her time in service to the Sith cause, Ventress utilized her lightsabers in several capacities—as her master's emissary[10] and assassin,[11] as well as a militarycommander of the Separatist Droid Army.[10] She fought a number of Jedi on several occasions with varying degrees of success, such as Kenobi, Skywalker,[12]Luminara Unduli, and Ahsoka Tano.[13]

Ventress retained her Sith lightsabers after Tyranus discarded her on the orders of his master, Darth Sidious, and continued to use them as a Nightsister[14] before pursuing a career as a bounty hunter.[15] Both lightsabers were lost when the fallen Jedi Barriss Offee ambushed Ventress in the Coruscant underworld and took possession of her weapons,[2] consequently forcing the bounty hunter to acquire a replacement.[4] Offee was later forced to use Ventress's lightsabers when Skywalker confronted her in the Jedi Temple, and thereby revealed herself as the culprit responsible for framing Tano.[2]

Oppo Rancisis was set to make another appearance in Star Wars: The Clone Wars series where his lightsaber would be visible. The show was cancelled before the blade made an appearance. Designs for the lightsaber were revealed by Dave Filoni and Pablo Hidalgo in their The Untold Clone Wars panel at Celebration Anaheim in 2015. The design was based on Count Dooku's lightsaber and included the addition of a hilt-guard.